Improvement iw water-heaters



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WATER-HEATER. No. 187,605. Patnted Feb. 20,1877.

WILLIAM DOOTSON, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN WATER-HEATERS.

Specification forming part ofLetters Patent No. H82',b05, dated February 20, 1877; application filed January 22, 1877.

To all whom it may concern:

Be it known that I, WILLIAM DOOTSON, of Philadelphia, Pennsylvania, have invented a new and useful Improvement in WVater- Heaters, of which the following is a specification:

The object of my invention is to construct a water-heating apparatus in passing through at the opposite ends. To the pipe A, near one end of the same, is secured a vertical tube, B, and to the pipe A a similar vertical tube, B.

Feed-water is admitted to the tubeB, near the lower end of the same, through a pipe, at,

and passes from the tube, near the upper end of the same, through a pipe, 12, which is bent as shown, so as to form a series of united tubular columns, communicating at each lower bend, througha branch, 0, with the pipe A.

A pipe, I), forming another series of united tubular columns, forms a continuation of the pipe b, every lower bend of the said pipe I)" communicating, through branches 0, with the pipe A, The water, after circulating through the bent pipes b b, is discharged into the tube B, near the lower end of the same, and is discharged from the said tube through apipe, w. The two horizontal pipes A A communicate with each other through a transverse pipe, y, which has an outlet branch, m. i The above apparatus is to.be placed in the flue of a steam-boiler in' such a position that a proper degree of heat may be imparted to it without detracting from that required for generating steam. The flue at'the rear end of the boiler, for instance, would be a good location for the apparatus, as the products of combustion, after performing their steam-generating duties, will impinge against the heater before they pass off to the chimney.

are trapped in the pipes A A. which are inreality mud-drums, and from which the con-i tents may be discharged from time to time through the pipe m.

The water may pass directly from the pipe a into the bent pipesb b, and may be forced directly (that is to say, without first entering the pipe .13) into the boiler or other device in which it is to be used; but I prefer to have a pipe of large capacity for the water to enter before itreaohes the bentpipe, and for the water to pass into before it reaches the distributing-pipe.

There may be but one bent pipe b, and one pipe or mud-drum A; or there may be more than two mud-drums, and two sets of bent pipes. The capacity of the apparatus will, in fact, depend in a great measure upon the size of the boiler to be fed, and upon that of the due in which the apparatus has to be placed.

1 claimas my invention- 1. Thecombination, in a feed-water heater, of the mud-drum A with the vertical bent pipe I), each lower bend communicating with the said drum, as specified;

2. The combination of the vertical tubes B B with the bent pipes Z 6, the mud-drums A A, communicating-pipes e e, and inlets and outlets, all substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM DOO TSON. Witnesses:

HERMANN MOESSNER, HARRY SMITH. 

